Which one of the following statements is incorrect about menstruation?
At menopause in the female, there is especially abrupt increase in gonadotropic hormones.
The beginningof the cycle of menstruation is called menarche.
During normal menstruation about $40\ mL$ blood is lost.
The menstrual fluid can easily clot.
In girl, the first menstruation begins at puberty and is called .....
Ovulation can be detected by
Which one of the following events is correctly matched with the time period in a normal menstrul cycle
Which of the following is false for progesterone ?
Assertion : Corpus luteum degenerates in the absence of fertilization.
Reason : Progesterone level decreases.